Developer Tools
A collection of essential tools for developers
JSON Formatter
Format, validate and beautify JSON data
JSONFormatterValidator
JWT Decoder
Decode and verify JSON Web Tokens
JWTDecoderAuthentication
Base64 Encoder/Decoder
Encode or decode Base64 strings
Base64EncoderDecoder
Hash Generator
Generate MD5, SHA-1, SHA-256 and other hashes
HashMD5SHACryptography
URL Encoder/Decoder
Encode or decode URL components
URLEncoderDecoder
HTML Encoder/Decoder
Encode or decode HTML entities
HTMLEncoderDecoder
UUID Generator
Generate random UUIDs/GUIDs
UUIDGUIDGenerator
Timestamp Converter
Convert between Unix timestamps and human-readable dates
TimestampDateConverter
Regex Tester
Test and debug regular expressions
RegexTesterPattern Matching
Diff Checker
Compare text differences between two blocks of text
DiffCompareText
Password Generator
Generate secure random passwords
PasswordSecurityGenerator
SEO Analyzer
Analyze webpages for SEO factors and improvements
SEOAnalyzerWebsiteMeta Tags
AI Text Detector
Check if text was likely generated by an AI language model
AILLMText AnalysisContent Verification
Python UV Setup
Initialize Python projects with uv, a fast package manager and installer
PythonuvVirtual EnvironmentPackage Manager
TypeScript Setup
Initialize and configure TypeScript projects with various templates and settings
TypeScriptJavaScriptSetupConfiguration
Mermaid Chart
Create and render diagrams using Mermaid syntax
DiagramFlowchartVisualizationMermaid
IP Address Checker
Check your current IP address and get location information
IPNetworkLocationGeolocation
Subnet Calculator
Calculate network address, broadcast address, and available hosts for IP subnets
NetworkingIPSubnetCIDR
API Tester
Test API endpoints with different HTTP methods and analyze responses
APIHTTPRESTTestingPostman